Plant reservoir



FIG. 1 is a reduced top perspective view of a plant reservoir showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front view, the rear being identical

FIG. 4 is a side view taken from the right of FIG. 1, the side opposite being identical;

FIG. 5 is a bottom view thereof. 

The ornamental design for a plant reservoir, as shown and described. 